<script setup>
import {
    Edit,
    Delete
} from '@element-plus/icons-vue'

import { ref } from 'vue'

//文章分类数据模型
const categorys = ref([
    {
        "id": 3,
        "categoryName": "美食",
        "categoryAlias": "my",
        "createTime": "2023-09-02 12:06:59",
        "updateTime": "2023-09-02 12:06:59"
    },
    {
        "id": 4,
        "categoryName": "娱乐",
        "categoryAlias": "yl",
        "createTime": "2023-09-02 12:08:16",
        "updateTime": "2023-09-02 12:08:16"
    },
    {
        "id": 5,
        "categoryName": "军事",
        "categoryAlias": "js",
        "createTime": "2023-09-02 12:08:33",
        "updateTime": "2023-09-02 12:08:33"
    }
])

//用户搜索时选中的分类id
const categoryId=ref('')

//用户搜索时选中的发布状态
const state=ref('')

//文章列表数据模型
const articles = ref([
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
    {
        "id": 5,
        "title": "陕西旅游攻略",
        "content": "兵马俑,华清池,法门寺,华山...爱去哪去哪...",
        "coverImg": "https://big-event-gwd.oss-cn-beijing.aliyuncs.com/9bf1cf5b-1420-4c1b-91ad-e0f4631cbed4.png",
        "state": "草稿",
        "categoryId": 2,
        "createTime": "2023-09-03 11:55:30",
        "updateTime": "2023-09-03 11:55:30"
    },
])

//分页条数据模型
const pageNum = ref(1)//当前页
const total = ref(20)//总条数
const pageSize = ref(3)//每页条数

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
    pageSize.value = size
    articleList();
}
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
    pageNum.value = num
    articleList();
}

//回显文章分类列表
import {articleCategoryListService} from '@/api/article.js'
const articleCategoryList  = async()=>{
    let result = await articleCategoryListService();
    categorys.value = result.data;
}
//执行
articleCategoryList();

//搜索文章列表
import {articleListService} from '@/api/article.js'
const articleList  = async()=>{
    let params = {
        pageNum: pageNum.value,
        pageSize: pageSize.value,
        categoryId: categoryId.value ? categoryId.value : null,
        state: state.value ? state.value : null
    }
    let result = await articleListService(params);

    total.value = result.data.total
    articles.value = result.data.items
    
     //为列表中添加categoryName属性
     for(let i=0;i<articles.value.length;i++){
        let article = articles.value[i];
        for(let j=0;j<categorys.value.length;j++){
            if(article.categoryId==categorys.value[j].id){
                article.categoryName=categorys.value[j].categoryName
            }
        }
    }
    
}

articleList();

import { QuillEditor } from '@vueup/vue-quill'
import '@vueup/vue-quill/dist/vue-quill.snow.css'
import {Plus} from '@element-plus/icons-vue'
//控制抽屉是否显示
const visibleDrawer = ref(false)
//添加表单数据模型
const articleModel = ref({
    title: '',
    categoryId: '',
    coverImg: '',
    content:'',
    state:''
})

//导入token
import{useTokenStore} from '@/stores/token'
const tokenStore = useTokenStore()

//上传成功的函数
const uploadSuccess = (result) => {
    articleModel.value.coverImg=result.data;
    console.log(result.data);
 }


 import {articleAddService,articleDeleteService,articleUpdateService} from '@/api/article.js'
 import { ElMessage } from 'element-plus'
 //添加文章
 const addArticle = async(State)=>{
    articleModel.value.state = State
    let result = await articleAddService(articleModel.value);
    ElMessage.success(result.message? result.message:'添加成功')
    //再次调用getArticles,获取文章
    articleList();
    //隐藏抽屉
    visibleDrawer.value=false   
}
//删除文章
import { ElMessageBox } from 'element-plus'
const deleteArticle = (row) => {
    ElMessageBox.confirm(
        '你确认删除该文章信息吗？',
        '温馨提示',
        {
            confirmButtonText: '确认',
            cancelButtonText: '取消',
            type: 'warning',
        }
    )
        .then(async() => {
            //用户点击了确认
            //用户点击了确认
            let result = await articleDeleteService(row.id)
            ElMessage.success(result.message?result.message:'删除成功')
            //再次调用getAllCategory，获取所有文章
            articleCategoryList();
        })
        .catch(() => {
            //用户点击了取消
            ElMessage({
                type: 'info',
                message: '取消删除',
            })
        })
} 

//添加文章

//弹窗标题
const title= ref('');
//显示编辑弹窗
const showDialog = (row) =>{
    visibleDrawer.value=true;title.value='编辑文章'
    //数据拷贝
    articleModel.value={
        id:row.id,
        title:row.title,
        content:row.content,
        coverImg:row.coverImg,
        categoryId:row.categoryId,
        state:row.state
    }
}

//编辑文章
const updateArticle = async()=>{
    let result = await articleUpdateService(articleModel.value)
    ElMessage.success(result.message?result.message:'编辑成功')
    //再次调用getArticles,获取文章
    visibleDrawer.value=false
    //再次调用getArticles,获取文章
    articleList();
}
//添加文章表单数据清空
const clearArticleModel = ()=>{
    articleModel.value={
        title: '',
        categoryId: '',
        coverImg: '',
        content:'',
        state:''
    }
}



</script>
<template>
    <el-card class="page-container">
        <template #header>
            <div class="header">
                <span>文章管理</span>
                <div class="extra">
                    <el-button type="primary" @click="visibleDrawer=true;title='添加文章'; clearArticleModel()">添加文章</el-button>
                </div>
            </div>
        </template>
        <!-- 搜索表单 -->
        <el-form inline>
            <el-form-item label="文章分类：">
                <el-select placeholder="请选择" v-model="categoryId">
                    <el-option 
                        v-for="c in categorys" 
                        :key="c.id" 
                        :label="c.categoryName"
                        :value="c.id">
                    </el-option>
                </el-select>
            </el-form-item>

            <el-form-item label="发布状态：">
                <el-select placeholder="请选择" v-model="state">
                    <el-option label="已发布" value="已发布"></el-option>
                    <el-option label="草稿" value="草稿"></el-option>
                </el-select>
            </el-form-item>
            <el-form-item>
                <el-button type="primary" @click="articleList">搜索</el-button>
                <el-button @click="categoryId='',state=''">重置</el-button>
            </el-form-item>
        </el-form>
        <!-- 文章列表 -->
        <el-table :data="articles" style="width: 100%">
            <el-table-column label="文章标题" width="400" prop="title"></el-table-column>
            <el-table-column label="分类" prop="categoryName"></el-table-column>
            <el-table-column label="发表时间" prop="createTime"> </el-table-column>
            <el-table-column label="状态" prop="state"></el-table-column>
            <el-table-column label="操作" width="100">
                <template #default="{ row }">
                    <el-button :icon="Edit" circle plain type="primary" @click="showDialog(row)"></el-button>
                    <el-button :icon="Delete" circle plain type="danger"  @click="deleteArticle(row)"></el-button>
                </template>
            </el-table-column>
            <template #empty>
                <el-empty description="没有数据" />
            </template>
        </el-table>
        <!-- 分页条 -->
        <el-pagination v-model:current-page="pageNum" v-model:page-size="pageSize" :page-sizes="[3, 5 ,10, 15]"
            layout="jumper, total, sizes, prev, pager, next" background :total="total" @size-change="onSizeChange"
            @current-change="onCurrentChange" style="margin-top: 20px; justify-content: flex-end" />


            
            <!-- 抽屉 -->
        <el-drawer v-model="visibleDrawer" :title="title" direction="rtl" size="50%">
            <!-- 添加文章表单 -->
            <el-form :model="articleModel" label-width="100px" >
                <el-form-item label="文章标题" >
                    <el-input v-model="articleModel.title" placeholder="请输入标题"></el-input>
                </el-form-item>
                <el-form-item label="文章分类">
                    <el-select placeholder="请选择" v-model="articleModel.categoryId">
                        <el-option v-for="c in categorys" :key="c.id" :label="c.categoryName" :value="c.id">
                        </el-option>
                    </el-select>
                </el-form-item>
                <el-form-item label="文章封面">

                    <el-upload class="avatar-uploader" :auto-upload="true" :show-file-list="false"
                    action="/api/upload"
                    name="file"
                    :headers="{Authorization:tokenStore.token}"
                    :on-success="uploadSuccess"
                    >
                    
                        <img v-if="articleModel.coverImg" :src="articleModel.coverImg" class="avatar" />
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                    
                </el-form-item>
                <el-form-item label="文章内容">
                    <div class="editor">
                              <quill-editor
                                        theme="snow"
                                        v-model:content="articleModel.content"
                                        contentType="html"
                                        >
                            </quill-editor>  
                    </div>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" @click="title=='添加文章'? addArticle('已发布') : updateArticle()">发布</el-button>
                    <el-button type="info" @click="title=='添加文章'?addArticle('草稿') :updateArticle()">草稿</el-button>
                </el-form-item>
            </el-form>
        </el-drawer>
    </el-card>
</template>




<style lang="scss" scoped>
.page-container {
    min-height: 100%;
    box-sizing: border-box;

    .header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}

/* 抽屉样式 */
.avatar-uploader {
    :deep() {
        .avatar {
            width: 178px;
            height: 178px;
            display: block;
        }

        .el-upload {
            border: 1px dashed var(--el-border-color);
            border-radius: 6px;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: var(--el-transition-duration-fast);
        }

        .el-upload:hover {
            border-color: var(--el-color-primary);
        }

        .el-icon.avatar-uploader-icon {
            font-size: 28px;
            color: #8c939d;
            width: 178px;
            height: 178px;
            text-align: center;
        }
    }
}
.editor {
  width: 100%;
  :deep(.ql-editor) {
    min-height: 200px;
  }
}
</style>